Blasting-machine



UNTED STATES PATENT FFCE.

ARETUS A. VVILDER, OF DETROIT, MICHIGAN.

PLANING-MACHINE.

Speccation of Letters Patent No. 9,495, dated December 21, 1852;Antedated July 17, 1852,

To all whom 'it may concern:

Beit known that I, ARn'rUs ANDREWS VILDER, of Detroit, in "Wayne countyand State of Michigan, have invented certain new and useful Improvementsin Machinery for Planing Lumber; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to letters of referencemarked thereon, in which.-

Figure l, is a plan or top view of the machine. Fig. 2, is a sideelevation. Fig. 8, is a central longitudinal section. Fig. 4, is a sideview of the main and sliding beds with the cutter stock frame. Fig. 5,is a transverse section taken on the line a a: of Fig. l. Fig. 6, is anelevation of the rear end of the machine.

The nature of my improvements consist in, constructing planing machinesso that the board to be planed can be clamped to the reciprocating` bedwhile being fed by the backward motion of the planes so that the boardwill be free to move over the stat-ionary bed plate upon which it isplaned.

To enable others to make and use my invention, l will proceed todescribe the construction, and operation of the machine, together withmy improvement.

I construct a substantial frame, of suitable size and form, asrepresented in the drawings, by the letter A, having cross bearings a,from side to side, above which, and resting on them, is a sliding frameB, with inclined planes b, on its upper side, corresponding with, andfitting against inverted inclines o, on the under side of the main bedC; this sliding frame is movable. longitudinally, by means of the screwCZ, for the purpose of elevating or depressing the main bed, to adjustit to the various thicknesses of lumber to be planed, which is effectedby the inclined planes on the frame, passing under, in opposition tothose in the under side of the bed, which insures a solid bearing tosaid bed, and is very essential, in finishing the lumber of equalthickness; this bed has no lateral or longitudinal motion; the face ofit is formed with recesses e, near to each end, across it, in whichslide the reciprocating sectional beds E, E', the faces of which areslightly raised above the level of the main bed, to prevent the lumberfrom bearing too hard on the main bed, While being fed into the machine;these reciprocating beds are connected with each other, by side rods j,and have attached to them dogs f, which are hung in segmental bracketsg, at each end of said beds, whereby they can be adjusted to suit thethickness of the lumber; the use of these beds and dogs, is to draw thelumber into the machine, and feed it into the side cutters, by theirbackward motion, returning they pass freely under and over it, while itis held fast by the dogs F, which are mounted in suitable journals ateach end of the frame, and which clamp the board between them and themain bed, to prevent it from receding, while under the action of thesurfacing planes; the reciprocating bed E is formed so that the centerpart of it, sinks into or through an opening in the main bed, the undersides of each, being` on the same level, leaving only sufIic-ientsubstance of metal, in each side of the main bed, to forni slides forthe reciprocating bed to slide on, and to allow of recesses or groovesL, across its face, in the direction of its motion, which admit of agrating, or series of bars z', through said grooves, being attached to,and on a level with the main bed, in order that the lumber may have asolid bearing under the last knife, in whatever position thisreciprocating bed may be, which, if it were constructed like the one atthe opposite end of the main bed, would leave a vacancy under the lastknife stock, when at the rear end of its stroke, which would allow theboard to spring away from the knife, and therefore be irregular inthickness.

The frame G, which carries a series of knife stocks H, bolted to it,transverse to and above the bed, is supported by bearings m, on theslides n, on either side of the frame A, and on which it travels; havinga reciprocating motion, imparted through the rock shaft arms I, whichare connected with the wrist pins 7c, on said frame G, by the connectingrods J, at either side of said frame; the rods K, connecting thedownward arms of the rock shaft, with crank pins Z, on either end of theshaft L, which is driven by any suitable driving gear; to this frame Gr,are attached the sliding beds, by the rods t, thereby imparting a likereciprocating motion to them; the knife stocks H, are graduated on theirunder side, each one rearward a shade lower than that in advance of it,the face or under side of each, in its cross section, being perfectlyparallel with the bed, and having its permanent mouth piece r, cut awayon the under side, to the level of the heel of the knife stock inadvance of it; thus the heel of the knife stock, and its mouth piece,take an equal bearing on the board, the knife being adjusted by the setscrews 0, and secured to t-he stock by bolts p, so that its edge isexactly even with the heel of the knife stock, thus the differencebetween the level of the mouth piece, and that of the heel of the stock,will be the thickness of the shaving, that each plane will take off,which is gradually reduced on each knife stock, until the last knife,takes the thinnest possible shaving, putt-ing a ne finish on the lumber;at the rear end of the machine, is attached a table M, formed withbrackets, and bolted to the main frame by bolts u, fitting in slots, soas to adjust its level, to suit that of the main bed, on this table atone side, is bolted fast a series of tonguing planes N, at the otherside is a corresponding series of grooving planes and jointers O, thebolts which secure these to the table, are fitted in slots, so as to setthem nearer to, or farther from the tonguing planes, and thus adapt themto the width of the lumber to be tongued and grooved; t-hese sidingplanes are arranged in like manner to the surfacing planes, each onerearward, cutting deeper than that in advance.

In operating this machine, the lumber is fed in, as indicated by thearrow on the drawings, and is caught by the dog on the reciprocatingbed, and pulled in by its backward motion, on the return motion ofwhich, the board is held fast by the stationary dog F, while the planespass over it, to the eX- tent of their stroke, when it is again pulledin by the backward motion as before, and so on alternately, and when ithas passed the surfacing planes, is fed into or between the sidingplanes, by the back action of the reciprocating beds and dogs, whereasthe surfacing, is performed during their forward motion, thus equalizingas far as possible, the amount of work performed, throughout the entirerevolution of the driving shaft.

Having thus described my invention and improvement in machines forplaning, tonguing, and grooving boards, I disclaim the invention ofplaning by a reciprocating plane which planes on its forward stroke andfeeds the board on its backward stroke the whole distance of the strokeof the plane as in other machines of this class; but

W'hat I do claim is- The reciprocating beds arranged with respect to thestationary bed substantially as described in combination with theclamps, or their equivalents attached to the plane stock whereby theboard is clamped between said movable beds and the clamps, and is freeto move over the stationary planing bed and is fed during the backwardstroke of the plane the whole length of such stroke.

,In testimony whereof I have hereunto signed my name before twosubscribing witnesses.

ARETUS A. W'ILDER. lVitnesses WVM. P. ELLIOT, I. S. SMITH.

